Matched Pair Tung-Sol 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing Beautiful Engraved

Matched Pair Tung-Sol 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing Beautiful EngravedThis matched pair of Tung Sol black glass 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts. Tube One drew 25. 6 milliamps' plate current while Tube Two drew 25. 8. Transconductance was 2000 for Tube One and 2040 for Tube Two where new nominal is within one standard deviation of 1900. As I write, I am playing them in my Mini Mite 2013 and they sound great. WE HAVE SCORES OF THOUSANDS OF VACUUM

black plates and Micanol bases

I am playing them one at a time using a 6C4 to 6J5 adapter in one of my RC-2 monoblocks with Super Furry Animals' "Radiator" and they sound excellent

52/52 and 54/54 where minimum (65%) is 40/40

almost-perfectly-matched pair of RCA (Hewlett-Packard By RCA) 6AG7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

An excellent performance and live recording as well

This lot of three Silvertone coated glass 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box Sylvania 9JW8 / PCF802 tube tested to spec on our Paul Hart-calibrated TV7/U

" I'm suspecting it was for Vivienne Leigh's role as she looked so much like Patricia O'Neil and sounded like Tallulah Bankhead

Otherwise it is sold as-is with no returns

Three are available initially in this Dutch Auction

It tested 48 in Section One and 46 in Section Two where minimum (65%) is 40/40 and 100% is 62/62

These eight US-made 6BQ6 / 6CU6 tubes tested as follows on our Paul Hart-calibrated TV7/U: